summaryrefslogtreecommitdiff
path: root/src/stem/task/idt.h
blob: bb89013c6bc4223ac0e1f4ad660336090d2e8cb4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
#ifndef DEF_IDT_H
#define DEF_IDT_H

#include <types.h>

struct idt_entry {
	uint16_t base_lo;		//Low part of address to jump to
	uint16_t sel;			//Kernel segment selector
	uint8_t always0;
	uint8_t flags;			//Flags
	uint16_t base_hi;		//High part of address to jump to
} __attribute__((packed));

struct idt_ptr {
	uint16_t limit;
	uint32_t base;
} __attribute__((packed));

struct registers {
	uint32_t cr3;		//page directory physical address
	uint32_t ds;                  // Data segment selector
	uint32_t edi, esi, ebp, esp, ebx, edx, ecx, eax; // Pushed by pusha.
	uint32_t int_no, err_code;    // Interrupt number and error code (if applicable)
	uint32_t eip, cs, eflags, useresp, ss; // Pushed by the processor automatically.
};

typedef void (*int_callback)(struct registers*);

void idt_init();
void idt_handleIrq(int number, int_callback func);

#endif